The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X95-30S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø80mm bore, 95mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X95-30S brings field-adjustable stroke control to the 80 mm bore class, delivering a substantial 2513 N push force at 0.5 MPa. Its rear-cap screw provides up to 30 mm of stroke-end reduction, letting technicians fine-tune the piston stop without removing the cylinder from the machine—ideal for commissioning trials or format changeovers where the exact travel needs to be dialled in on the fly.
This model includes a built-in magnet (-S suffix), so CMSG, DMSG, or EMSG sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The 25 mm piston rod and PT3/8 ports handle high flow, while the 28 mm air cushion decelerates loads smoothly. Body length A(SCJ) is 239 mm, and the push force climbs to 4523 N at the maximum operating pressure of 0.9 MPa.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X95-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 95 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 28 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×95 | Nominal (maximum) stroke length in mm. |
| -30 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Engineers can dial in the exact stroke end during machine commissioning by adjusting the rear screw up to 30 mm, eliminating the need to swap cylinders or fabricate external hard stops.
On packaging or sorting lines, the adjustable stroke lets operators quickly reset the pusher travel for different box sizes or product widths, reducing downtime between batches.
In clamping or pressing fixtures, the 30 mm adjustment range can take up tooling wear over time, maintaining consistent contact force without replacing the actuator.
Choose the SCJ80X95-30S when you need to fine-tune the stroke end on an 80 mm bore platform. If 2513 N push at 0.5 MPa is more force than your application requires, the SCJ63 series offers 1559 N push in a lighter, more compact package; if you need more, stepping up to the SCJ100 delivers 3927 N push. For fixed-stroke applications where the travel never changes, the standard SC80 cylinder is a simpler, lower-cost alternative. When replacing this unit, match the 80 mm bore, 95 mm nominal stroke, 30 mm adjust range, PT ports, and the -S magnet option. The SCJ mounting subset includes Basic, FA front flange, LB foot, and TC centre trunnion—no FB flange or clevis mounts are available on this series.
Adjustable-stroke checklist
At 0.5 MPa, this double-acting single-rod cylinder produces 2513 N push and 2268 N pull. Push force is higher because the full bore area is used, while pull force subtracts the 25 mm rod area. At the maximum operating pressure of 0.9 MPa, push force reaches 4523 N.
Yes, if you need the adjustable stroke feature. The SCJ80X95-30S shares the same 80 mm bore, PT3/8 ports, and mounting accessories as the SC80, but the body is slightly longer to house the rear adjusting screw. Ensure your machine has clearance for the extended length and that the 30 mm adjustment range suits your stroke-tuning needs.
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